Roller Equipment
JINING SUSON ENVIRONMENTAL SCI-TECH CO., LTD.
Our company has been deeply involved in the paper processing industry for many years. We have established long-term and stable strategic partnerships with many well-known paper mills both domestically and internationally. This not only demonstrates our solid foundation in the industry but also reflects our deep understanding and refined skills in manufacturing paper machine accessories. We have an experienced and technically strong R&D team that focuses on the design, research and development, and production of paper machine accessories.
Why Choose Us
Quality Assurance
We have a highly skilled and experienced R&D team dedicated to the design, development, and production of paper machine accessories.
Production Market
We provide high-quality accessories to many paper mills and machinery factories.
Our Certificate
Our products have successfully passed SHQC international certification, which means they meet high global standards for quality and safety.
Our Service
According to your needs and project characteristics, our technical experts will provide you with a customized solution. Including product selection, configuration optimization, system integration, etc., to ensure that the solution fully fits your business needs and budget.
The Press Roll
Press rolls are cylindrical components located in the press section of a paper machine, positioned after the forming section and before the drying section. Their primary function is to mechanically remove water from the wet paper web by applying pressure in the nip (contact) zone between two rolls or between a roll and a shoe press.
Efficient water removal at this stage is critical because it reduces the load on the drying section, which consumes significant energy through steam heating. Thus, effective press rolls contribute to improved energy efficiency and faster paper production speeds.
Press rolls also influence the sheet’s surface smoothness, thickness uniformity, and overall mechanical properties. They play a direct role in preventing sheet defects such as wrinkles, breaks, or unevenness, which can lead to production downtime and material waste.
Product Parameters
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Paper width |
Smooth press roll,grooved press roll,thread press roll ,vacuum press roll,movable arc roll,medium and high roller. |
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Diameter-Face Length |
Shell/Material |
Shaft |
Roll face cover |
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1092 |
380*1420 |
Iron Cast/Steel plate rolling (S355 OR 45#) |
Cast steel/45# 40Cr/42CrMo |
Rubber Polyethylene |
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1575 |
400-450*2000 |
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1760 |
420-420*2100 |
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1880 |
450-550*2300 |
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2400 |
580-1000*2900 |
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2640 |
600-1350*3100 |
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3200 |
700-1350*3700 |
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3600 |
700-1350*4300 |
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4400 |
800-1500*5050 |
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Types of Press Rolls and Their Functions
Rubber press rolls are one of the most widely used types of press rolls in modern paper mills. They feature a rubber covering bonded to a steel core, designed to provide elasticity and uniform pressure distribution across the paper web.
The elasticity of the rubber surface allows the roll to conform to the shape of the mating roll or shoe, enhancing the nip pressure and improving water removal without damaging the delicate paper fibers or press felts. Rubber • press rolls are particularly effective in:
• Reducing sheet compression marks
• Improving fiber bonding
• Enhancing sheet smoothness and uniformity
• Increasing press nip moisture extraction efficiency
Because of these benefits, many paper mills prioritize sourcing rubber press rolls from reliable suppliers to ensure durability, consistent performance, and compatibility with various paper grades.
Vacuum press rolls are specialized rolls that integrate vacuum systems within their structure to assist in water removal. These rolls apply vacuum suction on the felt or paper web, helping to extract water mechanically held within the sheet.
By combining vacuum suction with mechanical pressing, vacuum press rolls enhance dewatering performance beyond what mechanical pressure alone can achieve. This results in:
• Higher dryness levels before the drying section
• Reduced steam consumption and energy costs
• Improved press felt life by reducing water retention
• Vacuum press rolls are often used in conjunction with rubber press rolls to maximize water removal efficiency.
While rubber press rolls and vacuum-assisted rolls dominate modern paper machines, steel press rolls are still employed in certain configurations. Steel rolls are rigid and typically used as the mating roll opposite a rubber roll or shoe press. Some applications also include composite rolls, ceramic-coated rolls, or rolls with specialized surface treatments to handle specific papermaking challenges, such as chemical resistance or high-temperature operation.
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Elements of Press roll: Shell, Journal, Bearing House, Bearing,etc. |
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Shell |
Cast Iron or Stainless Steel |
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Journal |
Cast Steel or nodular Cast Iron |
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Coating |
Rubber or PU and Blind Drill |
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Bearing |
S K F or F A G, etc. |
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bearing house |
Gray Cast Iron or Nodular Cast Iron or Spheroidal Graphite Cast Iron |
Applications
The paper machine wire part mainly has a chest roll, a roll roll and a reel roll, and a case roll as a dewatering element. On the return path of the forming wire, there are many rollers supporting the net, and these rolls can be called guide rolls. There are also tensioning rolls and correction rolls. Paper-making rubber rollers are used for rubber rollers for paper-making.
FAQ